package com.example.dbdesign.config;

//import com.example.dbdesign.filter.JwtAuthenticationTokenFilter;
import com.example.dbdesign.filter.JwtAuthenticationTokenFilter;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.web.AuthenticationEntryPoint;
import org.springframework.security.web.access.AccessDeniedHandler;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;

@Configuration
//@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
//    @Override
//    protected void configure(HttpSecurity http) throws Exception {
//        http.authorizeRequests()
//                .anyRequest()
//                .authenticated()
//                .and()
//                .httpBasic()
//                .and()
//                .csrf().disable();;
//    }

    @Autowired
    JwtAuthenticationTokenFilter jwtAuthenticationTokenFilter;

    @Autowired
    private AuthenticationEntryPoint authenticationEntryPoint;

    @Autowired
    private AccessDeniedHandler accessDeniedHandler;

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
                .csrf().disable()
                .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS)
                .and()
                .authorizeRequests()
                .antMatchers("/user/login").anonymous()
                .anyRequest().authenticated();

        //添加token检验过滤器到过滤器链中
        http.addFilterBefore(jwtAuthenticationTokenFilter, UsernamePasswordAuthenticationFilter.class);


        //配置认证异常处理器
        http.exceptionHandling().authenticationEntryPoint(authenticationEntryPoint).
                accessDeniedHandler(accessDeniedHandler);

        //允许跨域
        http.cors();

    }

    @Bean
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }

    @Bean
    @Override
    public AuthenticationManager authenticationManagerBean() throws Exception {
        return super.authenticationManagerBean();
    }
}